Empatho

Anyone using (Patriot Performance GM LS6 Series Stage II Head and Cam Kit) this kit on their C5 or any Ls1 vehicle? I'm asking because i was planing on getting the kit, and I was wondering what the rwhp would be after the kit to see if it's worth getting it.

kit specs
Combustion Chamber Volume (cc): 59
CNC Machined Combustion Chamber
CNC Machined Intake Runner
CNC Machined Exhaust Runner
Intake Runner Volume (cc): 225cc
Exhaust Runner Volume (cc): 83cc
Intake Valve Diameter (in): 2.020 in.
Exhaust Valve Diameter (in): 1.570 in.
Rocker Arm Style: Full roller
Valve Seats Machined
Valve Seat Machine Style: 5-angle
Camshaft specs are 232/230, .580 in./.578 in., 110 lobe separation angle

SLPRC5

You not worried about the CA smog police??

Invisiguard

bump!

jhong321

I am running them on a ls2 402 with a 230/234/114 putting about 470 rwhp
I am running a bigger valve (2.08 and 1.60)
They are a great bang for your buck head

I do have to ask you why are you running a reverse split cam? with such a low lsa ? Are you planning to run a turbo ?

Ikester

Sounds like a track only cam with hardly any street driveabilty

Empatho

I was on summit checking things out and I saw the kit, it looks like a really good kit for the money $1,795.95 but if it's not smog leagal then forget about it thout they were good for the street because it said on the page " Ideal for street and strip, these heads supply a good HP gains, and can handle blown or nitrous applications" and I was planing on getting nitrous latter on

Invisiguard

well we're in Cali so any modification afte the air filter is technicaly illegal unless its got a CARB sticker, so you might as well get any meaningful power mods out of your head right now if thats going to be a big concern of yours

then again, I would stand on my head if you got pulled over and a cop was able to tell the differnece between a set of stock or Patriot heads, usually as long as you dont have an open element air filter poking out you will get by on a visual, besides they're WAY more interested in harrassing import cars than corvettes(ask me how I know!) so i definitly wouldnt let any CARB exempt status turn you off of heads

Empatho

I went back to summit to check on the kit and found out that I have a choice of these two cams for the kit
#1
226/226, .585 in./ .585 in., 112 lobe separation angle.

#2
232/230, .580 in./.578 in., 110 lobe separation angle.

I think cam #1 should be ok with the smog test, so if I get the kit with cam #1 should I be around 400+ rwhp

Invisiguard

dunno, that 226/226 cam with the 112 duration seems like a pretty meaty medium grind cam, would be fun but I dont think you'll be passing any sniffers with the amount of HCs that profile would make. Look, I suggest you either jump in with both feet and do the head/cam combo and dont sweat the smog or dont mess with trying to fid a head cam combo that will pass sniffer. I doubt there is one, and if there is it wouldnt be worth the $$ and effort for the little power it makes. You know they changed the law, you dont have to smog a new car in Cali for the first SIX years. I dont even plan to keep this car that long

Empatho

that sux how do you guys with h/c mods do it to pass the Cali smog test my car is an 02 so I dont need to smog until 08?

Invisiguard

EDIT: well yeah you have till 08, yeah I guess most of us either sell it or put it back to stock before we worry about smog, its not like its every 2 years anymore so I would just budjet it in I suppose

Empatho

I got my car this year I think in august and I should be done paying it off next year the latest July, so I was planing on rebuilding the engine and getting the H/C kit to have more power and having a really fun DD

tblu92

I just went thru tihs awhile back--From Calif also--with smog-rollers too---I chose the LS6 stock heads with some mild port and clean-up work and cam is a .221/.221 .567/,567 @ 114 lsa--I was really worried about the smog police--no long tubes either---As It turned out it passed easily--So I would guess that I could have gone to at least .around the .226 -228 range.I believe the major issue is the LSA---from the research I did a 114 was the smallest you could go and get it to pass--You might get a 112 to pass but not at .230---Anyway I was quite disappointed as well as the .221 without longtubes can't breathe and i could only muster 360 RWHP--With the LT/s and a UD pulley--maybe a FAST 78 intake I think i can hit the holy grail of 400 RWHP without taking thr heads and cam out again---I chose the LS6 heads because they are GM and thought they would be easier on me. a They are however only legal on the year model they came on and I have a '98.

Empatho

what is the stock heads combustion chamber volume? the volume on this heads is 59 would the compression be to high with this heads to use pump gas or should I be Ok with 93

Empatho

tblu92 so i should be ok with the smog test if I go with cam #1 226/226, 112 lobe?
what about if I use shorties instead of long tubes can I be at 400+ rwhp

SLPRC5

I'm going with the Comp cam 224/224 lift .568/.568 LSA115 ( want it to be a sleeper cam) have my LS6 heads ported and milled to 62cc chamber.
You could go with a set of long tube headers, hi-flo cats, ud pulley, LS6 heads and a LS6 intake. Patriots have a nice set of 243 heads ported double springs and ss valves will mill to your specs.
You should get to 400 rwhp easily with a M6 tranny.
Should have no smog problem...find a place that will not fail you on a visual for the LT headers.
Good luck

SLPRC5

Are you able to get 93* in SD? All we get up here in the Bay Area is 91*.
here are the specs on LS6 heads:

Stock LS6 Heads. Chamber, 64.45 cc, 0.100, 0.200, 0.300, 0.400, 0.500, 0.550, 0.600. Intake, 210 cc, 62, 126, 184, 224, 251, 256, 257 ...
I was recommended to take my head chambers down to 61 or 62cc.

ksett

That definitely will not pass. The highest you would want to try is a
224\228 on 114 or smaller, but keep the lsa at 114 or higher.

GTSLN97

check out the thunder racing cheatr cam, it will pass smog...

SLPRC5

should make good power too